Technology answer

Chicago Boss

169

companies run it, <0.01% of 54,527,857 in the index. Landing 12 Sept 2026.

Hosts: 246 live hosts run it, of 191,809,695 hosts in the index, <0.01%. A host is a website, not a company.

Companies by month

No published series

169 companies is under the publication floor of 1,000, and the fixed panel anchored at 31 Dec 2020 carries 68 of them. A monthly line drawn off that many observations would be noise at the same weight as a line off millions, so this page states the count and its date and publishes no series.

First discovered 3 Feb 2025, last discovered 8 Sept 2026.

Both denominators, and a third

Shares of the same 169each row a different wholelanding 12 Sept 2026

Denominator

Companies

Share

companies in the index

54,527,857

<0.01%

companies running anything in Web Frameworks

3,723,648

<0.01%

companies running anything in Other-language web frameworks

4,536

3.7%

Three wholes, three shares of one count: a share travels with its whole, never alone. Against the last of them, Chicago Boss is rank 4 of 7 technologies in Other-language web frameworks.

Open as a segment

169 companies; add a country, a sector or a band on the segment page. Counting is free.

/companies/tech-chicago-boss

Open the segment

Catalogue record

As recorded in the cataloguetaxonomy release tax-2026.10last discovered 8 Sept 2026

Chicago Boss is an open-source Erlang web framework inspired by MVC patterns.

Chicago Boss is a self-hosted Erlang web framework for building dynamic web applications with MVC conventions. It is maintained by the Chicago Boss project and used by developers building Erlang-based sites and APIs.

Kindlibrary

VendorChicago Boss, chicagoboss.org

PathWeb Engineering > Web Frameworks > Other-language web frameworks

Slugchicago-boss

Deploymentself-hosted

Pricingfree

Open sourceyes

First discovered2025-02-03

Last discovered2026-09-08

Taxonomy releasetax-2026.10

One click under this answer

Subcategory answerOther-language web frameworksCompanies running anything in Other-language web frameworks, 4,536 of 54,527,857 in the index, and the technologies ranked in it.Category answerWeb FrameworksThe category above this one, with its subcategories and the companies in each.CatalogueAll 8,177 technologiesRanked by the companies running them, with the publication gate named and the long tail drawn.